Question: When did Delta Air Lines have a 12.8 market capitalization?
Paraphrase: On what date was a 12.8 market capitalization achieved by Delta Air Lines?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q188920 p:P2226 ?s . ?s ps:P2226 ?x filter(contains(?x , '1.1643e+10')) . ?s pq:P585 ?value}